oiapoquensis, Corydoras Nijssen [H.] 1972:425, Fig. 7 [Netherlands Journal of Zoology v. 21 (no. 4); ref. 673] Cumuri Creek at left bank of Oyapock River, French Guiana. Holotype: IRSNB 489. Paratypes: IRSNB 490 (orig. 17, now 9), 491 (1), 493 (orig. 27, now 12), 495 (orig. 22, now 10), 496 (orig. 51, now 29); MZUSP [ex IRSNB 490] (8), [ex IRSNB 493] (15), [ex IRSNB 495] (12), [ex IRSNB 496] (28); USNM 205869 [not 205868] (2); ZMA 110589-94 (10, 2, 4, 12, 8, 6). Type catalog: Nijssen et al. 1982:48 [ref. 19236], Walschaerts 1987:19 [ref. 20755], Ferraris & Vari 1992:14 [ref. 19771], Ferraris 2007:121 [ref. 29155]. Some types are also paratypes of Corydoras condiscipulus. •Valid as Corydoras oiapoquensis Nijssen 1972 -- (Nijssen & Isbrücker 1980:212 [ref. 6910], Burgess 1989:366 [ref. 12860], Le Bail et al. 2000:204 [ref. 24549], Isbrücker 2001:231 [ref. 26805], Reis in Reis et al. 2003:300 [ref. 27061], Ferraris 2007:121 [ref. 29155]). •Valid as Hoplisoma oiapoquense (Nijssen 1972) -- (Dias et al. 2024:27 [ref. 41219] as oiapoquensis). Current status: Valid as Hoplisoma oiapoquense (Nijssen 1972). Callichthyidae: Corydoradinae. Distribution: South America: Oyapock River basin, Brazil and French Guiana. Habitat: freshwater.